Single control means fob steam-engine supply valves and reverse levees



Nov. 1, 1927.

J. E. ur-u )u=' ET AL SINGLE CONTROL MEANS FOR STEAM ENGINE SUPPLY VALVES AND REVERSE LEVERS 2 Shee ts-Sheet 1 Filed Jan. 21. 1927 Inventors afmflesl' zm2'a Zar/f #07 Mm Attorney Nov. 1, 1927. 1,647,859

J. E. DUNLAP ET AL SINGLE CONTROL MEANS FOR STEAM ENGINE SUPPLY VALVES AND REVERSE LEVERS Filed Jan; 21. 1927 2 Sheets-Sheet 2 Inventors fimaaiizw Patented Nov. 1 1927.

UNITED STATES Lfiei'htSti PATENT OFFIEE,

JAMES ERNEST DUNLAP AND EARL MARK HORN, F WICHITA FALLS, TEXAS.

SENGLE COihTTROL MEANS FOR STEAM-ENGINE SUPPLY VALVES AND REVERSE LEVERS.

Application filed January 21, 1927. Serial No. 162,548.

This invention relates generally to oil field steam engines and has more particular reference to-a means whereby a single handle may be controlled for operating the engine steam s' zupply valve and reverse lever so that only one hand of the operator will be required in performing this double duty.

An. important object of the invention is to provide a device of this character that is absolutely positive in its operation, relativelysimple in its construction and of such a nature as to permit of themounting-of the same adjacent theenginecontrol valve and reverse lever.

With the foregoing and other objects in view as the nature of the invention will be better understood, the same comprises the novel form, combinationand arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimedf Figure 1 is'a view partly in side elevation" and partly in cross section of my improved device as actually-in use.

Figure 2 is a horizontal section taken sub stantially upon the line 2-2 of Figure 1.

Figure is a front side elevation.

Figure 1 is a section taken through the gear casing of the device, and

Figure 5 is a group perspective of the elements of an adjustable connection that provides an essential feature of the present invention.

Now having particular reference to the drawings, A in Figure 1 designates the steam control valve between a source of steam supply and the steam engine, while B designates the reverse lever of the engine which is usually directly adjacent the valve A. My invention per se consists of a plate 5 arranged vertically at one side of a supporting post 0 preferably one of the legs of a well derrick and being pivoted thereto by reason of a horizontal pivot 6 extending through the plate and said post. Furthermore this plate 5 at a point above its pivotal connection is formed with an arcuate slot 7 through which projects a bolt 8 attached to the post for the purpose of securing the plate at a predetermined angle with respect to said post. i

At the upper and lower ends of this plate 5 and at the edge remote from the valve'A and lever B are-lateral ears 99 to facilitate the pivotal connection of a gear casing 10 to the plate 5, which gear casing is also provided at its inner edge and at its upper engagement between the ears 99 of said c circular bosses 16-16 that are rotatably mounted within circular openings in the front and rear faces of the casing 10 as clearly disclosed in Figure 1. Extending. through'the center of the upper and lowermost gears and 13 respectively, is a square bore 15 and 13 slidable through which are square bars 17 and 18, respectively. The inner end of the uppermost bar 17 is swivelly connected as at 19 to the upper end of the reverse lever B while the inner end of the lowermost bar 18 is operatively con nected to the stem of the valve A. The opposite end of the upper bar 17' extends e011- siderably beyond the gear casing 10 and is equipped with a suitable handle 20.

The manner of attachment of the plate 5 with the post C as well as "the pivotalconnection or the gear casing 10 to said plate is for the purpose of permitting the proper alignment of the device with the steam valve, A and reverse lever B, dependent upon the position of the valve and the lever with re spect to the support, and in order that the gear casing '10 may be rigidly secured to the plate 5 after having been swung to the proper angle with respect thereto, there is provided an adjustable connection between said plate and said casing. This connection consists of a pair or" plate links 21 and 22, the inner ends of which are pivoted to the adjacent faces of the plate and gear casing at the outer edges thereof as in Figures 1 and 2. The inner end of the link plate 22 is constructed with. longitudinal slot 28, while the link plate 21 is formed adjacent its outer endwith a threaded opening 2% for receiving a locking bolt 25. It is apparent that by releasing the bolt 25 the casing 10 may be swung with respect to the plate, whereas after the proper adjustment has been made the bolt is tightened for main- I 60 and lower ends w1th lateral ears 1111 for taining the casing rigidly associated with. said plate. It is of course to be understood that the bars are disconnected from the valve and reverse lever respectively during the adjustment oi the gear casing 10, the bars being connected to the valve and reverse lever respectively subsequent to the adjustment of the gear casing and the plate to the proper positions.

It is or course to be understood that the reverse lever B does not move through an appreciable arc. However, in order to prevent any binding action between the bar 17 and the bore 15, the plate may be adjusted by loosening the bolt E. This will prevent any possibility of the bar 1"? from binding in the bore of the gear 15.

In view of the foregoing description when considered in conjunction with the accompanying drawing, it will be fully appreciated that a turning of the handle will cause such a rotation of the three gears 13, 1 1-, and 15 as to rotate the valve attached bar 18 in the direction the handle 20 is turned. Furthermore, by moving the handle inwardly or outwardly with respect to the device, the operation 01 the reverse lever 13 WI l be controlled, with the end in view that ale member in the hand of the operator be so manipulated as to actuate either alve 11 or lever B.

ing thus described the invention, what aiin is:

' x a control device for the valve and e lever of a steam engine, a plate mempivotally and adjustably secured to areport adj aeent the valve and reverse lever, casl pivotally secured at one e e to said plate, means for securing the pivoted gear casing in any predetermined adjusted sition, a pair of spaced substantially parf l bars slidable through the gear casing, rmeshin gears arranged in the casing, i am 01" 1 being operatively connected to the valve and reverse lever respectively subsequent to the adjustment of the gear casing and a handle upon the outer end of the lever attached bar whereby the lever may be actuated through the r verse movement of said bar, and whereby the valve actuating bar may be rotated upon the rotation of the lever attached bar by reason of said intermeshing gears.

in a control device for the valve and reverse lever 01 a steam engine, a vertically and horizontally adjustable gear casing mounted on a support adjacent the valve and reverse lever, intermeshing gears arranged in the casing, a pair of bars slidable through he gear casing and through certain of said gears, the inner ends of the bars being operitively connected to the valve and reverse lever respectively subsequent to the adjustment of the gear casing, and a handle on the outer end of the lever attached bar whereby the lever may e actuated through the re verse movement of the bar, and whereby the valve actuating bar may be rotated upon the rotation of the lever attached bar by reason of the inter-meshing gears.

in a control device for the valve and reverse lever or a steam engine, a casing recur-ed on a support adjacent the valve and reverse lever, intermeshing gears arranged in the casing, a pair of bars slidable through the casing and certain of said gears, the in ner ends of the bars being operatively connected to the valve and reverse lever respectively, and a handle on the outer end of the lev r attached bar whereby the lever may be actuated through the reverse movement of said bar, ant. whereby the valve attached bar may be rotated upon the rotation of the lever attached bar by reason of the intermeshing i tesiiinony whereof we affix our signatures. 

